/* =========================================================================
   CHIRANJIT KAR LUXURY PHOTOGRAPHY — HIGH-FASHION EDITORIAL STYLESHEET
   ========================================================================= */

html {
    scroll-behavior: smooth;
}

@layer utilities {
    .liquid-glass {
        background: rgba(14, 16, 22, 0.6);
        backdrop-filter: blur(28px);
        -webkit-backdrop-filter: blur(28px);
        border: 1px solid rgba(255, 255, 255, 0.09);
        box-shadow: 0 16px 50px -15px rgba(0, 0, 0, 0.6);
    }

    .liquid-card {
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.035) 0%, rgba(255, 255, 255, 0.008) 100%);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border: 1px solid rgba(255, 255, 255, 0.07);
        transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
        position: relative;
        overflow: hidden;
    }

    .liquid-card::before {
        content: '';
        position: absolute;
        inset: 0;
        background: radial-gradient(800px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(212, 175, 55, 0.06), transparent 40%);
        opacity: 0;
        transition: opacity 0.5s ease;
        pointer-events: none;
    }

    .liquid-card:hover::before {
        opacity: 1;
    }

    .liquid-card:hover {
        border-color: rgba(229, 195, 136, 0.4);
        transform: translateY(-5px);
        box-shadow: 0 25px 50px -15px rgba(0, 0, 0, 0.7), 0 0 25px rgba(212, 175, 55, 0.08);
    }

    /* Dramatic Vignette for Hero Slides */
    .bg-radial-vignette {
        background: radial-gradient(circle at center, rgba(4, 4, 6, 0.35) 0%, rgba(4, 4, 6, 0.9) 100%);
    }

    .hero-title-shadow {
        text-shadow: 0 4px 30px rgba(0, 0, 0, 0.9), 0 1px 3px rgba(0, 0, 0, 0.8);
    }
}

/* Custom Gold Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: #040507;
}

::-webkit-scrollbar-thumb {
    background: #232530;
    border-radius: 9999px;
    border: 1px solid rgba(212, 175, 55, 0.15);
}

::-webkit-scrollbar-thumb:hover {
    background: #b88a35;
}

/* =========================================================================
   SCROLL REVEAL ANIMATIONS (EDITORIAL STAGGER)
   ========================================================================= */
.editorial-reveal {
    opacity: 0;
    transform: translateY(35px);
    transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
}

.editorial-reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.editorial-reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.editorial-reveal-left.is-visible {
    opacity: 1;
    transform: translateX(0);
}

.editorial-reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.editorial-reveal-right.is-visible {
    opacity: 1;
    transform: translateX(0);
}

.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }
.delay-400 { transition-delay: 0.4s; }
.delay-500 { transition-delay: 0.5s; }

/* =========================================================================
   INFINITE EDITORIAL MARQUEE
   ========================================================================= */
.marquee-wrapper {
    overflow: hidden;
    white-space: nowrap;
    position: relative;
    user-select: none;
}

.marquee-content {
    display: inline-flex;
    gap: 2rem;
    animation: marqueeSlide 38s linear infinite;
    will-change: transform;
}

.marquee-content:hover {
    animation-play-state: paused;
}

@keyframes marqueeSlide {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* =========================================================================
   PORTFOLIO FILTER TABS & CARDS
   ========================================================================= */
.portfolio-tab-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: #9ca3af;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.portfolio-tab-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #ffffff;
    border-color: rgba(212, 175, 55, 0.3);
    transform: translateY(-1px);
}

.portfolio-tab-btn.active {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.22) 0%, rgba(184, 138, 53, 0.1) 100%);
    border-color: rgba(212, 175, 55, 0.55);
    color: #f3e5ab;
    box-shadow: 0 4px 20px rgba(212, 175, 55, 0.2);
}

/* Image Hover Zoom & Overlay */
.portfolio-card {
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.6s ease;
}

.portfolio-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.85);
}

.portfolio-card img {
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.portfolio-card:hover img {
    transform: scale(1.05);
}

/* =========================================================================
   FAQ SMOOTH GRID ACCORDION (BUTTERY 60FPS)
   ========================================================================= */
.faq-grid-item {
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.faq-grid-item:hover {
    border-color: rgba(212, 175, 55, 0.3);
    transform: translateY(-2px);
}

.faq-accordion-body {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.faq-grid-item.is-open .faq-accordion-body {
    grid-template-rows: 1fr;
}

.faq-accordion-inner {
    overflow: hidden;
}

.faq-toggle-icon {
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), color 0.4s ease;
}

.faq-grid-item.is-open .faq-toggle-icon {
    transform: rotate(45deg);
    color: #f3e5ab;
}

.faq-grid-item.is-open {
    border-color: rgba(212, 175, 55, 0.4);
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.04) 0%, rgba(255, 255, 255, 0.01) 100%);
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5), 0 0 20px rgba(212, 175, 55, 0.06);
}

/* =========================================================================
   HERO SLIDES & ANIMATIONS
   ========================================================================= */
.hero-slide {
    will-change: transform, opacity;
}

.hero-slide.scale-100 img {
    animation: kenBurns 14s ease-out alternate infinite;
    transform-origin: top center;
}

@keyframes kenBurns {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(1.08);
    }
}

/* Floating Back to Top Button */
#back-to-top {
    transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

#back-to-top.show {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

#back-to-top.hide {
    opacity: 0;
    pointer-events: none;
    transform: translateY(16px);
}

/* Hide scrollbar for category tabs */
.scrollbar-none::-webkit-scrollbar {
    display: none;
}
.scrollbar-none {
    -ms-overflow-style: none;
    scrollbar-width: none;
}